A Data Storage Strategy for Low-latency in Memory HDFS

In this paper,we present a storage system,Mem-HDFS,to enable low-latency read accesses.Mem-HDFS integrates the available memory resources in an HDFS clusters to form a cloud storage system.We also present an adaptive identically distributed storage strategy and concurrently read access algorithm.By serving data from memory instead of disks,Mem-HDFS can yield high I/O performance with low latency.